1 /*- 2 * Copyright (c) 2015 The FreeBSD Foundation 3 * 4 * This software was developed by Andrew Turner under 5 * sponsorship from the FreeBSD Foundation. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 /* 34 * Setup the system to run on the current machine. 35 * 36 * Configure() is called at boot time and initializes the vba 37 * device tables and the memory controller monitoring. Available 38 * devices are determined (from possibilities mentioned in ioconf.c), 39 * and the drivers are initialized. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/bus.h> 45 #include <sys/cons.h> 46 #include <sys/kernel.h> 47 48 #include <machine/intr.h> 49 50 static void configure_first(void *); 51 static void configure(void *); 52 static void configure_final(void *); 53 54 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); 55 /* SI_ORDER_SECOND is hookable */ 56 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); 57 /* SI_ORDER_MIDDLE is hookable */ 58 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); 59 60 /* 61 * Determine i/o configuration for a machine. 62 */ 63 static void 64 configure_first(void *dummy) 65 { 66 67 /* nexus0 is the top of the device tree */ 68 device_add_child(root_bus, "nexus", 0); 69 } 70 71 static void 72 configure(void *dummy) 73 { 74 75 /* initialize new bus architecture */ 76 root_bus_configure(); 77 } 78 79 static void 80 configure_final(void *dummy) 81 { 82 83 /* Enable interrupt reception on this CPU */ 84 intr_enable(); 85 cninit_finish(); 86 87 if (bootverbose) 88 printf("Device configuration finished.\n"); 89 90 cold = 0; 91 } 92